The Apollo Space Flight program lasted from 1961 to 1972.

Apollo 11 was Neil Armstrong's famous first step.

Apollo 17 was the last manned mission to the moon.

In all, 20 Apollo flights were planned, but Apollo 1819 and 20 were cancelled.

But in 2007, a retired astronaut blew the whistle and claimed Apollo 1819 and 20 did happen,

but they were highly classified.

He knows this because he was the commander of Apollo 20.

He said the reason these missions were kept secret is because of what they found on the moon.

Well, not just what they found, also who they found.

The primary goal of the Apollo Space Flight program was to land the first man on the moon.

This was achieved on July 20, 1969 when Neil Armstrong famously said,

That was Apollo 11. Apollo 12 also landed on the moon successfully.

Apollo 13 had to abort after Tom Hanks famously said,

But Apollo 14, 15, 16 and Apollo 17 all made it to the moon.

But here's where things get weird.

The Apollo missions made all kinds of scientific discoveries that experts still study today.

But despite the success of these missions, Apollo 1819 and 20 were cancelled due to budget cuts and lack of public interest.

But ever since then, there's been a story floating around that those flights actually happened.

But they did so as part of a top secret, black budget program.

Eventually, we would get confirmation of this.

In 2007, a YouTube user with the handle retired AFB posted a video that set the internet on fire.

It was a short clip that showed the interior of an Apollo spacecraft.

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